Ophion tenuicornis Johansson & Cederberg 2019
- Dataset
- Review of the Swedish species of Ophion (Hymenoptera: Ichneumonidae: Ophioninae), with the description of 18 new species and an illustrated key to Swedish species
- Rank
- SPECIES
- Published in
- Johansson, Niklas, Cederberg, Björn (2019): Review of the Swedish species of Ophion (Hymenoptera: Ichneumonidae: Ophioninae), with the description of 18 new species and an illustrated key to Swedish species. European Journal of Taxonomy 550: 1-136, DOI: 10.5852/ejt.2019.550
Classification
- kingdom
- Animalia
- phylum
- Arthropoda
- class
- Insecta
- order
- Hymenoptera
- family
- Ichneumonidae
- genus
- Ophion
- species
- Ophion tenuicornis
biology_ecology
Ecology The flight period is late summer and autumn. One female in NHRS was reared from Thyatira batis (Linnaeus, 1758) and one female was reared from the same host in HSC. This is notable since only the two species of the subgenus of Platophion are known to parasitize the subfamily Thyatirinae. Both reared specimens are rather small, which suggests the existence of additional hosts.
description
Description Fore wing length 15 – 16 mm. Antenna with 46 – 53 flagellomeres. First flagellomere 4.5 times as long as wide. Second flagellomere very elongate about 3.5 – 4.0 times as long as wide. Central flagellomeres elongate, about 2.5 – 3.0 times as long as wide. Apical flagellomeres approximately 2.5 times as long as wide (Fig. 8 C). Apical flagellomeres in female, less so in males, with long prominent pilosity. Length of pilosity in females at least 0.5 width of flagellomere (Fig. 8 C). Head narrow behind eyes, in lateral view with temple 0.2 – 0.3 times as long as compound eye in females, slightly longer in males, 0.4 – 0.5 times the lenght of the compound eye. Ocelli in female large, partly covering the inner margin of compound eye in dorsal view, the distance between ocelli about 0.3 times the diameter of ocelli. Malar space about 0.1 times as long as mandibular base in female and about 0.3 times in male. Mandibular gape right-angled, with internal angles. Wing membrane clear. Ramellus usually distinct, reaching 0.2 – 0.3 the width of discosubmarginal cell but sometimes small or absent. Radius evenly curved (Fig. 13 A). Mesopleuron weakly shagreened with deep, distinct punctures. Interstices between punctures about equal to their diameter. Epicnemial carina, in antero-ventral view, with pleurosternal angles obviously anterior to sternal angles. Pleurosternal angles rounded, slightly obtuse. Scutellum with lateral carinae only indicated basally. Propodeum with very weak rugose structure, shining with anterior and posterior transverse carina strongly raised (Fig. 10 L). Longitudinal carinae delimiting area superomedia and lateral longitudinal carinae sometimes weak or absent, but normally clearly indicated at the junction with the posterior transverse carina. Hind trochantellus shorter than wide in dorsal view. Legs normal with hind femur about 6.0 – 7.0 times as long as wide. Sclerotised part of first sternite ending level or slightly posterior to spiracle. Inner spur of hind tibia as long as 0.4 times metatarsus. Colour Body testaceous. If infuscate or pale markings occur, they are usually far less distinct than in other species of the aggregate. Mandibular teeth black. Ovipositor brownish, slightly contrasting with the more testaceous posterior metasomal segments. DNA barcode The DNA barcode sequences of nine Swedish specimens of Ophion tenuicornis Johansson sp. nov. are available at the BOLD systems database (www. boldsystems. org, BIN. BOLD: ACK 3000. Specimen codes: STI-NJBC: 243 – 248, 250 – 252).
description
Figs 8 C, 10 L, 13 A, 44
diagnosis
Diagnosis Ophion tenuicornis Johansson sp. nov. is one of the species in an aggregate previously treated under the name Ophion parvulus. Ophion tenuicornis Johansson sp. nov. is easily distinguished from the other species in the aggregate currently known from Sweden by the more elongate and strongly pilose flagellomeres, and from O. costatus and O. parvulus also by the considerably narrower temple in lateral view.
distribution
Distribution in Sweden Occurs commonly all over the country, but rarer in the north.
etymology
Etymology The species has very slender antennae.
materials_examined
Material examined> 100 ♀♀, 27 ♂♂ (Sweden); 3 ♀♀ (Germany); 1 ♀, 6 ♂♂ (Norway); 3 ♀♀ (Lithuania). Type material Holotype SWEDEN • ♀; Öland, Mörbylånga, Strandskogen; 56.702 ° N, 16.494 ° E; 7 Sep. 2016; B. Andersson leg.; MV-light in garden on sandy soil close to deciduous forest; STI-NJBC 252; NHRS-HEVA 000008727. Paratypes SWEDEN • 2 ♀♀; Uppland, Rådmansö, Strömsborg; 59.711 ° N, 18.962 ° E; 14 Aug. – 7 Sep. 2016; N. Ryrholm and C. Källander leg.; MV-light trap in coastal mixed forest; STI-NJBC 243, STI-NJBC 248; NHRS-HEVA 000008728, NHRS-HEVA 000008729 • 1 ♀; Uppland, Norrtälje, Väddö Skjutfält; 59.939 ° N, 18.914 ° E; 4 Sep. – 16 Oct. 2016; N. Ryrholm and C. Källander leg.; Military shooting range, MV-light trap; STI-NJBC 244; NHRS-HEVA 000008730 • 1 ♀; Skåne, Ystad, Spraggehusen; 55.442 ° N, 14.246 ° E; 29 Jul. – 28 Aug. 2016; N. Ryrholm and C. Källander leg.; MV-light trap in sanddunes; STI- NJBC 245; NHRS-HEVA 000008731 • 1 ♀; Gotland, Öja, Gisle; 57.049 ° N, 18.289 ° E; 29 Sep. – 23 Oct. 2007; N. Ryrholm and C. Källander leg.; MV-light trap; STI-NJBC 246; NHRS-HEVA 000008732 • 1 ♀; Gotland, Sundre, Suders; 56.945 ° N, 18.303 ° E; 29 Sep. – 26 Oct. 2007; N. Ryrholm and C. Källander leg.; MV-light trap in deciduous woodland; STI-NJBC 247; NHRS-HEVA 000008733 • 1 ♀; Gotland, Sundre, Barrshage; 56.922 ° N, 18.186 ° E; 10 Sep. – 9 Oct. 2006; N. Ryrholm and C. Källander leg.; MVlight trap in wet meadows; NHRS-HEVA 000008734 • 1 ♀; Öland, Borgholm, Hälludden Byxelkrok; 57.356 ° N, 17.058 ° E; 22 – 24 2017; R. Isaksson leg.; MV-light; NHRS-HEVA 000008735 • 1 ♀; Norrbotten, Övertorneå, Soukolojoki; 66.472 ° N, 23.632 ° E; 2 Aug. – 5 Oct. 2017; N. Ryrholm and C. Källander leg.; MV-light trap; NHRS-HEVA 000008736 • 1 ♀, 2 ♂♂; Uppland, Norrtälje, Väddö Skjutfält; 59.939 ° N, 18.914 ° E; 29 Jul. – 18 Sep. 2017; N. Ryrholm and C. Källander leg.; MV-light trap in coastal military shooting range; NHRS-HEVA 000008737 to NHRS-HEVA 000008739 • 2 ♀♀; Skåne, Ystad, Spraggehusen; 55.442 ° N, 14.246 ° E; 28 Aug. – 30 Sep. 2006; N. Ryrholm and C. Källander leg.; MV-light trap in sanddunes; NHRS-HEVA 000008740, NHRS-HEVA 000008741 • 1 ♂; same data as for holotype; 1 Aug. – 28 Jul. 2016; B. Andersson leg.; MV-light in garden on sandy ground close to deciduous, oak dominated forest, NHRS-HEVA 000008742 • 1 ♀; Gotland, Öja, Petesviken; 57.004 ° N, 18.295 ° E; 5 May – 13 Oct. 2013; N. Ryrholm and C. Källander leg.; MV-light trap; NHRS- HEVA 000008743 • 1 ♂; Öland, Mörbylånga, Nedra Västerstad; 56.416 ° N, 16.411 ° E; 10 Jul. 2018; N. Johansson leg.; MV-light in garden surrounded by deciduous forest; NHRS-HEVA 000008744.